The tree trunk is considered a straight circular cone. The height of the tree is [[$ 14 $]] m and the diameter of its base is [[$ 24 $]] cm. Every year, the tree grows by [[$ 30 $]] cm and its base diameter increases by [[$ 4 $]] mm. By how many dm[[$ ^ 3 $]] of wood volume will then increase in five years? (Source: Finnish matriculation exam, spring 1994)

Take a picture of your solution and return it to the submission folder.

Answer: The volume of the wood increases by dm[[$ ^3 $]] in five years.